Stomacosmethis fultoni ( Moellendorff , 1896)

Pall-Gergely, Barna, Sajan, Sheikh, Tripathy, Basudev, Meng, Kaibaryer, Asami, Takahiro & Ablett, Jonathan D., 2020, Genus-level revision of the Alycaeidae (Gastropoda, Cyclophoroidea), with an annotated species catalogue, ZooKeys 981, pp. 1-220 : 1

Stomacosmethis fultoni ( Moellendorff, 1896) Fig. 43A

Alycaeus (Orthalycaeus) fultoni Möllendorff in E. A. Smith, 1895: 117-118, pl. 3, fig. 28.

Alycaeus (Alycaeus) fultoni - Kobelt 1902: 343-344; Zilch 1957: 146-147, pl. 6, fig. 29.

Type locality.

"prope Gomanton insulæ Borneo".

Material examined.

N-Borneo, Gomanton, coll. Möllendorff, SMF 109280 (lectotype, designated by Zilch 1957); Same data, SMF 109281 (2 paralectotypes); Borneo, ex coll. Fulton, NHMW 21002 (2 shells).

Remarks.

Protoconch without spiral lines, rather matte; R1 with irregular ribs and very weak spiral lines; R2 very short, with darker/wider and lighter/narrower stripes; lighter stripes are elevated from the surface, the overall surface is seemingly irregularly wrinkled.

Figures

Figure 43. Shells of Stomacosmethis Bollinger, 1918 species A Stomacosmethis fultoni (Moellendorff, 1896), lectotype (SMF 109280) B Stomacosmethis fultoni degenerans (Fulton, 1901), lectotype (SMF 109282). All figures: Barna Pall-Gergely, courtesy Ronald Janssen.